AF hasn't come yet!?!

So I don't know if this is the right place to put this but I'll give it a shot. I had an early miscarriage at 4 weeks on 06/19. It was an "easy" miscarriage meaning I bled for only about 2 day then had light spotting for the next 2 days. Well, AF was supposed to make her arrival on the 26th of this month. I am now 2 days late and I've never had irregular periods. I've had unprotected sex since, even right after due to the emotional roller coaster me and my fiancé where on being it was our 1st. Is it too soon to start testing to see if I'm pregnant?? We would love to know we have a possible rainbow baby! I feel crazy thinking I might be pregnant (even feeling pregnancy symptoms!!) but are praying that I am! Would love you ladies feedback! ❤️